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clemizole

Structure via PubChem · Public domain (PubChem)

EntityQ5131527· pop 6· linked from 332 articles

Also known as 1-(p-Chlorobenzyl)-2-pyrrolidylmethylenebenzimidazole, Depocural, Lergopenin

Clemizole, sold under the brand names Allercur and Histacur, is a histamine H1 receptor antagonist of the benzimidazole group described as an antihistamine, antipruritic, and sedative which is no longer marketed. It is a first-generation antihistamine.

Chemical data

Formula
C19H20ClN3
Molecular weight
325.8 g/mol
IUPAC name
1-[(4-chlorophenyl)methyl]-2-(pyrrolidin-1-ylmethyl)benzimidazole
SMILES
C1CCN(C1)CC2=NC3=CC=CC=C3N2CC4=CC=C(C=C4)Cl
InChIKey
CJXAEXPPLWQRFR-UHFFFAOYSA-N
XLogP
4
Polar surface area
21.1 Ų
H-bond donors
0
H-bond acceptors
2
Formal charge
0

via PubChem

Drug data · ChEMBL

Max clinical phase
Phase 2
Molecule type
Small molecule
Indications
hepatocellular carcinoma, hepatitis C virus infection, Lennox-Gastaut syndrome

via ChEMBL · EBI

Wikidata facts

Mass
325.135
Show 4 more facts
chemical formula
C₁₉H₂₀ClN₃
canonical SMILES
C1CCN(C1)CC2=NC3=CC=CC=C3N2CC4=CC=C(C=C4)Cl
World Health Organisation international non-proprietary name
clemizole
Commons category
Clemizole
Sources (2)

via Wikidata · CC0

~2 min read

Encyclopedic overview

4 sections
Contents
  • Chemistry
  • Synthesis
  • See also
  • References

Clemizole, sold under the brand names Allercur and Histacur, is a histamine H1 receptor antagonist of the benzimidazole group described as an antihistamine, antipruritic, and sedative which is no longer marketed. It is a first-generation antihistamine.

It is also a serotonin receptor agonist and is being studied for the potential treatment of Dravet syndrome, Lennox–Gastaut syndrome, and epilepsy under the development code name EPX-100. The drug is said to act specifically as a serotonin 5-HT2 receptor agonist, with prominent affinity for the serotonin 5-HT2A and 5-HT2B receptors having been reported. On the other hand, it showed markedly lower affinity for the serotonin 5-HT2C receptor. Clemizole also showed affinity for several other receptors.

Excerpted from Wikipedia’s “clemizole” article, available under the CC BY-SA 4.0 licence.

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